import opencv vs import cv2

Question

I recently installed opencv-python-3.4.0.12 via pip install on Mac OS. When I run the Python interpreter, import cv2 works fine whereas import opencv raises ModuleNotFoundError. However, when I run the Python3 Interpreter, import opencv works fine whereas import cv2 raises ModuleNotFoundError.

What is the reason behind this difference and on a related note, should I use import opencv or import cv2? Does cv2 refer to OpenCV version 2?

Answer 1

You should import cv2. OpenCV releases two types of Python interfaces, cv and cv2. latest one is cv2. This will give you an idea whether you have installed opencv correctly.